.kuang{
    position: fixed;
    top: 30%;
    right: 1%;
}
.kuang li{
    cursor: pointer;
}
.kuang li:last-child{
    display: none;
}
.kuang li:after{
    content: '';;
    display: block;
    clear: both;
}
.kuang li>div{
    width: 150px;
    height: 50px;
    line-height: 50px;
    float: left;
    text-align: center;
    color: white;
    display: none;
    background-color: #d43b33;
}
.kuang li>span{
    display: block;
    float: right;
    width: 50px;
    height: 50px;
}